JP4263691B2 - Device for guiding, processing or conveying at least one yarn - Google Patents

Device for guiding, processing or conveying at least one yarn Download PDF

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JP4263691B2
JP4263691B2 JP2004514710A JP2004514710A JP4263691B2 JP 4263691 B2 JP4263691 B2 JP 4263691B2 JP 2004514710 A JP2004514710 A JP 2004514710A JP 2004514710 A JP2004514710 A JP 2004514710A JP 4263691 B2 JP4263691 B2 JP 4263691B2
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roller
feed roller
asynchronous motor
motor
follower
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JP2005530057A (en
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シュレーター ミヒャエル
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Oerlikon Textile GmbH and Co KG
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Saurer GmbH and Co KG
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    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01D—MECHANICAL METHODS OR APPARATUS IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS
    • D01D5/00—Formation of filaments, threads, or the like
    • D01D5/12—Stretch-spinning methods
    • D01D5/16—Stretch-spinning methods using rollers, or like mechanical devices, e.g. snubbing pins
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H51/00—Forwarding filamentary material
    • B65H51/30—Devices controlling the forwarding speed to synchronise with supply, treatment, or take-up apparatus
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H59/00—Adjusting or controlling tension in filamentary material, e.g. for preventing snarling; Applications of tension indicators
    • B65H59/38—Adjusting or controlling tension in filamentary material, e.g. for preventing snarling; Applications of tension indicators by regulating speed of driving mechanism of unwinding, paying-out, forwarding, winding, or depositing devices, e.g. automatically in response to variations in tension
    • B65H59/384—Adjusting or controlling tension in filamentary material, e.g. for preventing snarling; Applications of tension indicators by regulating speed of driving mechanism of unwinding, paying-out, forwarding, winding, or depositing devices, e.g. automatically in response to variations in tension using electronic means
    • B65H59/388—Regulating forwarding speed
    • D—TEXTILES; PAPER
    • D02—YARNS; MECHANICAL FINISHING OF YARNS OR ROPES; WARPING OR BEAMING
    • D02J—FINISHING OR DRESSING OF FILAMENTS, YARNS, THREADS, CORDS, ROPES OR THE LIKE
    • D02J13/00—Heating or cooling the yarn, thread, cord, rope, or the like, not specific to any one of the processes provided for in this subclass
    • D02J13/005—Heating or cooling the yarn, thread, cord, rope, or the like, not specific to any one of the processes provided for in this subclass by contact with at least one rotating roll
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2701/00—Handled material; Storage means
    • B65H2701/30—Handled filamentary material
    • B65H2701/31—Textiles threads or artificial strands of filaments

Description

本発明は請求項１の上位概念による、少なくとも１本の糸を案内するか又は処理するか又は搬送するための装置に関する。   The invention relates to an apparatus for guiding, processing or conveying at least one yarn according to the superordinate concept of claim 1.

例えば紡績プロセスで糸を案内しかつ搬送するためには２回以上の糸巻付けを可能にするために送りローラと該送りローラに対応配置された伴走ローラとから成る装置を用いることが公知である。この場合には送りローラは駆動され、伴走ローラはＥＰ１００１５２１Ａ２号明細書に記載されているように駆動装置を有していても有していなくてもよい。   For example, in order to guide and convey a yarn in a spinning process, it is known to use an apparatus comprising a feed roller and a follower roller arranged corresponding to the feed roller in order to allow two or more yarn windings. . In this case, the feed roller is driven and the follower roller may or may not have a drive device as described in EP 1001521A2.

ＥＰ１００１５２１Ａ２号明細書によれば送りローラと伴走ローラはそれぞれ１つの同期モータとして構成された電気モータによって駆動されることができる。この場合電気モータは送りローラと伴走ローラとをそれぞれ同じ周速度で駆動するために制御装置を用いて目標周波数によって制御される。駆動装置の設計は、できるだけ一定の糸速度を維持するためには送りローラの周速度と伴走ローラの周速度とが一定に保たれなければならないことがベースとなっている。しかし実地においては送りローラの外周面又は伴走ローラの外周面におけるわずかな不精度ですら、周速度を直接的に変化させる周面直径の偏差を発生させる。これは、糸が伴走ローラの周面の上で制動されるか又は先行を伴って案内される結果をもたらす。しかしこのような交番作用は一定しない糸走行の原因となり、平行して並んで走行する複数本の糸を案内する場合には不都合である。   According to EP 1001521 A2, the feed roller and the follower roller can each be driven by an electric motor configured as one synchronous motor. In this case, the electric motor is controlled by the target frequency using a control device in order to drive the feed roller and the follower roller at the same peripheral speed. The design of the driving device is based on the fact that the peripheral speed of the feed roller and the peripheral speed of the follower roller must be kept constant in order to keep the yarn speed as constant as possible. However, in practice, even a slight inaccuracy on the outer peripheral surface of the feed roller or the outer peripheral surface of the follower roller generates a deviation of the peripheral surface diameter that directly changes the peripheral speed. This results in the yarn being either braked on the peripheral surface of the follower roller or guided with a lead. However, such an alternating action causes unsteady yarn traveling, which is inconvenient when guiding a plurality of yarns traveling in parallel.

したがって本発明の課題は冒頭に述べた形式の装置を改良し、糸が送りローラの周面と伴走ローラの周面とにおいてほぼ一定の速度で案内されるようにすることである。   The object of the invention is therefore to improve the device of the type mentioned at the outset so that the yarn is guided at a substantially constant speed on the circumference of the feed roller and the circumference of the follower roller.

前記課題は本発明によれば、伴走ローラの電気モータが非同期モータとして構成され、この非同期モータが目標周波数で制御されかつモータスリップを有していることで解決された。本発明の利点は、伴走ローラが走行ローラの実際の周速度に対応させられた周速度で運転され得ることである。伴走ローラの非同期モータが調整フィードバックなしで制御されることで非同期モータの負荷に関連したモータスリップによって伴走ローラの周面においてはほぼ糸の速度、ひいては送りローラの周速度によって決められた周速度が調節される。   According to the present invention, the problem is solved by the fact that the electric motor of the follower roller is configured as an asynchronous motor, which is controlled at a target frequency and has a motor slip. An advantage of the present invention is that the follower roller can be operated at a peripheral speed corresponding to the actual peripheral speed of the travel roller. As the asynchronous motor of the follower roller is controlled without adjustment feedback, the peripheral speed determined by the peripheral speed of the follower roller by the motor slip related to the load of the asynchronous motor is almost determined by the peripheral speed of the follower roller and consequently the peripheral speed of the feed roller. Adjusted.

本発明の特に有利な実施例によれば、送りローラの電気モータも同様に非同期モータとして構成されているが、この電気モータは調整フィードバックを有している。このためには送りローラの非同期モータには実際周波数を測定するために役立つセンサが付属させられている。信号導線を介し実際周波数は制御装置に供給され、この制御装置にて目標周波数の修正が行なわれる。送りローラの非同期モータも伴走ローラの非同期モータも制御装置の目標周波数で制御されるので、目標周波数の変化は相応して伴走ローラの非同期モータにも与えられる。これは、負荷に際して非同期モータが傾向的に同じフィールドオリエンテーションで運転されることができ、伴走ローラが送りローラを助けて総引張り力を生ぜしめるという利点を有している。   According to a particularly advantageous embodiment of the invention, the electric motor of the feed roller is likewise configured as an asynchronous motor, which has an adjustment feedback. For this purpose, the feed roller asynchronous motor is accompanied by a sensor which is useful for measuring the actual frequency. The actual frequency is supplied to the control device via the signal conductor, and the control device corrects the target frequency. Since both the asynchronous motor of the feed roller and the asynchronous motor of the follower roller are controlled by the target frequency of the control device, the change of the target frequency is correspondingly applied to the asynchronous motor of the follower roller. This has the advantage that asynchronous motors can be operated with the same field orientation on load, and the follower roller helps the feed roller to produce a total tensile force.

周速度のできるだけ高い適合性を得るためには、本発明の有利な構成によれば、伴走ローラの非同期モータはできるだけ電気的に柔軟に設計されている。つまり伴走ローラの非同期モータは比較的に大きなモータスリップを有している。これに対し送りローラの非同期モータはできるだけわずかなモータスリップで構成されている。   In order to obtain the highest possible adaptability of the peripheral speed, according to an advantageous configuration of the invention, the asynchronous roller asynchronous motor is designed to be as electrically flexible as possible. That is, the asynchronous motor of the follower roller has a relatively large motor slip. On the other hand, the asynchronous motor of the feed roller is configured with as little motor slip as possible.

送りローラと伴走ローラはほぼ同じ大きさの周面直径を有していることができる。しかし、有利には伴走ローラは著しく小さい周面直径で構成される。このためには伴走ローラの非同期モータは、目標周波数を相応の周速度に変換するために、送りローラの非同期モータよりもわずかな極対数をもって構成されている。伴走ローラに対する送りローラの直径比が伴走ローラの非同期モータに対する送りローラの非同期モータの極対数比に等しい関係を維持することによって送りローラと伴走ローラとにおいて任意の直径差を設けることができる。   The feed roller and the follower roller can have substantially the same circumferential diameter. However, preferably the follower roller is constructed with a significantly smaller peripheral diameter. For this purpose, the asynchronous motor of the follower roller is configured with a smaller number of pole pairs than the asynchronous motor of the feed roller in order to convert the target frequency into a corresponding peripheral speed. By maintaining a relationship in which the diameter ratio of the feed roller to the follower roller is equal to the pole pair ratio of the asynchronous motor of the feed roller to the asynchronous motor of the follower roller, an arbitrary diameter difference can be provided between the feed roller and the follower roller.

しかし、送りローラと伴走ローラとの間で巻付けられた糸の糸緊張力を意識的に変化させることもできる。このためには送りローラ及び／又は伴走ローラは少なくとも１つの直径段を有している。この構成は有利には最後の糸巻付け内で送りローラと伴走ローラとの間で糸を搦ませるために特に有利である。   However, the yarn tension of the yarn wound between the feeding roller and the accompanying roller can be changed consciously. For this purpose, the feed roller and / or the follower roller have at least one diameter step. This arrangement is particularly advantageous for winding the yarn between the feed roller and the follower roller in the last yarn winding.

糸緊張力の漸増的な変化を得るためには送りローラ及び／又は伴走ローラが少なくとも１つの円錐状の周面領域を有することができる。   In order to obtain an incremental change in yarn tension, the feed roller and / or the follower roller can have at least one conical circumferential area.

糸を加熱するためには有利には送りローラは加熱手段をもって構成されている。したがって送りローラの周面は糸の処理に必要な温度を有する。   In order to heat the yarn, the feed roller is preferably constructed with heating means. Therefore, the peripheral surface of the feed roller has a temperature necessary for processing the yarn.

伴走ローラの非同期モータのスリップをより効果的に活用するためには伴走ローラの周速度が非同期モータの無負荷運転で０．１〜１０％、送りローラの周速度の上側にあるような調節が有利である。これによって有利な形式で伴走ローラにおける糸の制動力を活用することができる。   In order to use the slip of the asynchronous motor of the follower roller more effectively, adjustment is made so that the peripheral speed of the follower roller is 0.1 to 10% in the no load operation of the asynchronous motor and is above the peripheral speed of the feed roller. It is advantageous. This makes it possible to take advantage of the braking force of the yarn on the follower roller in an advantageous manner.

以下、本発明のさらなる利点を本発明の装置の有利な実施例に基づき添付図面を参照しながら詳細する。   In the following, further advantages of the present invention will be described based on advantageous embodiments of the device of the invention with reference to the accompanying drawings.

図１には本発明の装置の第１実施例の概略的な側面図が示されている。当該装置は送りローラ２と該送りローラ２に対し間隔をおいて交差して配置された伴走ローラ３を有している。送りローラ２は保持体４．１に片持式に回転可能に支承されておりかつ駆動軸５によって電気モータ７と結合されている。送りローラ２の電気モータ７は非同期モータとして構成されている。非同期モータ７は制御導線９．１を介し制御装置１０に連結されている。送りローラ２の非同期モータ７には非同期モータ７の実際周波数を検出するためのセンサ１１が設けられている。センサ１１は信号導線１２によって制御装置１０に接続される。   FIG. 1 shows a schematic side view of a first embodiment of the device according to the invention. The apparatus has a feed roller 2 and a follower roller 3 disposed so as to intersect the feed roller 2 at an interval. The feed roller 2 is supported in a cantilevered manner on the holding body 4.1 and is connected to an electric motor 7 by a drive shaft 5. The electric motor 7 of the feed roller 2 is configured as an asynchronous motor. Asynchronous motor 7 is connected to control device 10 via control lead 9.1. The asynchronous motor 7 of the feed roller 2 is provided with a sensor 11 for detecting the actual frequency of the asynchronous motor 7. The sensor 11 is connected to the control device 10 by a signal conductor 12.

伴走ローラ３は保持体４．２に片持式に支承されており、駆動軸６を介して電気モータ８により駆動される。伴走ローラ３の電気モータ８は非同期モータとして構成されている。非同期モータ８は制御導線９．２を介して制御装置１０に接続されている。   The accompanying roller 3 is supported in a cantilever manner on the holding body 4.2 and is driven by an electric motor 8 via a drive shaft 6. The electric motor 8 of the accompanying roller 3 is configured as an asynchronous motor. Asynchronous motor 8 is connected to control device 10 via control lead 9.2.

図１には本発明の装置が運転状態で示されている。この場合には糸１は２回以上巻掛けられて送りローラ２と伴走ローラ３を介して案内されている。この実施例では１本の糸だけしか示されていない。しかし本発明の装置は２本以上の平行に走行する糸を案内するために用いると有利である。糸を例えば紡糸ノズルから引出すか又はドラフト域にてドラフトするためには送りローラ２と伴走ローラ３とはほぼ同じ周速度で駆動される。このためには送りローラ２の非同期モータ７は制御装置１０により所定の目標周波数で制御される。送りローラ２にて目標回転数を得るためには送りローラの非同期モータ７の実際周波数値はセンサ１１により検出されかつ信号導線１２により制御装置１０に供給される。これにより送りローラ２は非同期モータ７のモータスリップとは無関係である所定の目標回転数で駆動されるようになる。   FIG. 1 shows the device according to the invention in operation. In this case, the yarn 1 is wound two or more times and guided through the feed roller 2 and the accompanying roller 3. In this embodiment, only one thread is shown. However, the device according to the invention is advantageously used for guiding two or more parallel running yarns. In order to draw the yarn from, for example, a spinning nozzle or draft it in a draft region, the feed roller 2 and the follower roller 3 are driven at substantially the same peripheral speed. For this purpose, the asynchronous motor 7 of the feed roller 2 is controlled by the control device 10 at a predetermined target frequency. In order to obtain the target rotational speed by the feed roller 2, the actual frequency value of the asynchronous motor 7 of the feed roller is detected by the sensor 11 and supplied to the control device 10 by the signal conductor 12. As a result, the feed roller 2 is driven at a predetermined target rotational speed that is unrelated to the motor slip of the asynchronous motor 7.

非同期モータ８による伴走ローラ３の駆動は、制御装置１０により制御導線９．２を介し非同期モータ８に与えられる同じ目標周波数で行なわれる。非同期モータ８は送りローラの非同期モータに較べて数の少ない極対を有している。この極対数は送りローラ２の周面直径と伴走ローラ３の周面直径との直径比に相応して選択される。伴走ローラ３の非同期モータ８は特に電気的に柔軟に構成されており、ひいては比較的に高いモータスリップを有している。したがって伴走ローラ３の実際周速度は非同期モータ８の高いモータスリップに基づきそのつどの負荷状態に適合させられるので、送りローラ２と伴走ローラ３との間で糸に不都合な交番作用が発生することはなくなる。したがって伴走ローラ３の未調整の周速度は調整された送りローラ２の周速度にほぼ等しくなる。   The drive of the follower roller 3 by the asynchronous motor 8 is performed at the same target frequency given to the asynchronous motor 8 by the control device 10 via the control lead 9.2. The asynchronous motor 8 has a smaller number of pole pairs than the asynchronous motor of the feed roller. The number of pole pairs is selected in accordance with the diameter ratio between the peripheral surface diameter of the feed roller 2 and the peripheral surface diameter of the follower roller 3. The asynchronous motor 8 of the follower roller 3 is configured to be particularly electrically flexible and thus has a relatively high motor slip. Therefore, the actual peripheral speed of the follower roller 3 is adapted to the respective load conditions based on the high motor slip of the asynchronous motor 8, so that an undesirable alternating action occurs on the yarn between the feed roller 2 and the follower roller 3. Will disappear. Therefore, the unadjusted peripheral speed of the follower roller 3 is substantially equal to the adjusted peripheral speed of the feed roller 2.

図２においては本発明による装置の別の実施例が概略的に示されている。図２の実施例は図１の実施例とほぼ同じであるので、ここでも先きの記述が当嵌まり、以後はその相違だけを示すことにする。その際、同じ機能を持つ構成部分には同じ符号が付けられている。   FIG. 2 schematically shows another embodiment of the device according to the invention. Since the embodiment of FIG. 2 is almost the same as the embodiment of FIG. 1, the above description applies here, and only the difference will be shown hereinafter. In this case, the same reference numerals are given to components having the same function.

送りローラ２と伴走ローラ３とを駆動するためには非同期モータとして構成された電気モータ７と８とが使用される。送りローラ２の非同期モータ７と伴走ローラ３の非同期モータ８とは同等に構成されている。何故ならば送りローラ２と伴走ローラ３とは同じ大きさの周面直径を有しているからである。送りローラ２を駆動するための非同期モータ７の調整と伴走ローラ３の非同期モータ８の制御は先きの実施例と同様に行なわれる。非同期モータ７と８の各々は制御装置１０によって与えられた目標周波数で制御される。この場合、目標周波数は制御装置１０において送りローラ２の非同期モータ７の実際周波数に応じて求められかつ設定される。   In order to drive the feed roller 2 and the accompanying roller 3, electric motors 7 and 8 configured as asynchronous motors are used. The asynchronous motor 7 of the feed roller 2 and the asynchronous motor 8 of the follower roller 3 are configured identically. This is because the feed roller 2 and the accompanying roller 3 have the same peripheral surface diameter. Adjustment of the asynchronous motor 7 for driving the feed roller 2 and control of the asynchronous motor 8 of the follower roller 3 are performed in the same manner as in the previous embodiment. Each of the asynchronous motors 7 and 8 is controlled at a target frequency given by the control device 10. In this case, the target frequency is obtained and set in the control device 10 according to the actual frequency of the asynchronous motor 7 of the feed roller 2.

先行する実施例とは異なって図２に示された実施例の場合には送りローラ２は直径段１３を持って構成されている。伴走ローラ３は直径段を有していない。したがって糸の最後の巻付けにおいては送りローラ２の周面の直径段１３における移行部において、送りローラ２と伴走ローラ３との間に糸１における糸緊張力の減退をもたらす速度差が発生する。これは例えば送りローラ２と伴走ローラ３との間で糸１を搦ませるために有利に使用することができる。このためには図２には搦ませノズル１４が破線で示されている。   Unlike the preceding embodiment, in the embodiment shown in FIG. 2, the feed roller 2 is configured with a diameter step 13. The accompanying roller 3 does not have a diameter step. Therefore, in the last winding of the yarn, a speed difference is generated between the feed roller 2 and the accompanying roller 3 at the transition portion in the diameter step 13 on the peripheral surface of the feed roller 2 that causes a decrease in the yarn tension of the yarn 1. . This can advantageously be used, for example, to twist the yarn 1 between the feed roller 2 and the follower roller 3. For this purpose, the constricting nozzle 14 is shown in broken lines in FIG.

図１と図２とに示された実施例は有利には、送りローラ２が同期モータで駆動されるようにも構成されていることができる。この場合には送りローラ２の同期モータと伴走ローラ３の非同期モータとは同じ目標周波数で制御装置１０によって制御される。しかしながら送りローラを非同期モータで駆動することも可能である。この場合にはモータの非同期成分はスイッチオンしてから目標周波数に達成するまでの有利な始動を保証する。同期成分は目標周波数に達した場合に送りローラが目標周波数とは異ならない周波数で駆動されることを保証する。したがって複数の送りローラが共通の変圧整流器を介して制御されることもできる。   The embodiment shown in FIGS. 1 and 2 can advantageously also be configured such that the feed roller 2 is driven by a synchronous motor. In this case, the synchronous motor of the feed roller 2 and the asynchronous motor of the follower roller 3 are controlled by the control device 10 at the same target frequency. However, it is also possible to drive the feed roller with an asynchronous motor. In this case, the asynchronous component of the motor ensures an advantageous starting from switching on until the target frequency is achieved. The synchronous component ensures that the feed roller is driven at a frequency that does not differ from the target frequency when the target frequency is reached. Thus, a plurality of feed rollers can be controlled via a common transformer rectifier.

本発明の装置の第１実施例の概略図。1 is a schematic diagram of a first embodiment of the apparatus of the present invention. 本発明の装置の別の実施例の概略図。Figure 3 is a schematic view of another embodiment of the apparatus of the present invention.

符号の説明Explanation of symbols

２ 送りローラ、 ３ 伴走ローラ、 ４．１，４．２ 保持体、 ５ 駆動軸、 ６ 駆動軸、 ７ 電気モータ、 ８ 電気モータ、 ９．１，９．２ 制御導線、 １０
制御装置、 １１ センサ、 １２ 信号導線、 １３ 直径段、 １４ 搦ませノズル 2 Feed roller, 3 Accompanying roller, 4.1, 4.2 Holding body, 5 Drive shaft, 6 Drive shaft, 7 Electric motor, 8 Electric motor, 9.1, 9.2 Control lead wire, 10
Control device, 11 sensor, 12 signal conductor, 13 diameter step, 14 constricting nozzle

Claims (8)

少なくとも１本の糸（１）を案内するか又は処理するか又は搬送するための装置であって、送りローラ（２）と該送りローラ（２）と協働する伴走ローラ（３）とを有し、糸（１）が前記送りローラ（２）と前記伴走ローラとに２回以上巻付けられるようになっており、前記送りローラ（２）に配属された第１の電気モータ（７）と、前記伴走ローラ（３）に配属された第２の電気モータ（８）と、制御導線（９．１，９．２）を用いて前記各電気モータ（７，８）に接続された制御装置（１０）とを有し、該制御装置（１０）が前記各電気モータ（７，８）を目標周波数で制御する形式のものにおいて、前記伴走ローラ（３）の電気モータ（８）が非同期モータとして構成され、該非同期モータが目標周波数で制御されかつモータスリップを有しており、伴走ローラ（３）が自動的に、送りローラの調整された周速度に適合させられることを特徴とする、少なくとも１本の糸を案内するか又は処理するか又は搬送するための装置。A device for guiding, processing or conveying at least one yarn (1), comprising a feed roller (2) and a follower roller (3) cooperating with the feed roller (2). The yarn (1) is wound around the feed roller (2) and the follower roller at least twice, and the first electric motor (7) assigned to the feed roller (2) A control device connected to each electric motor (7, 8) using a second electric motor (8) assigned to the follower roller (3) and a control lead (9.1, 9.2) (10), in which the control device (10) controls the electric motors (7, 8) at a target frequency, the electric motor (8) of the follower roller (3) is an asynchronous motor. The asynchronous motor is controlled at the target frequency and the motor slip It has, escort roller (3) is automatically, characterized in that it is adapted to the adjusted peripheral speed of the feed rollers, to or transported to or process to guide the at least one thread Equipment. 前記送りローラ（２）の電気モータ（７）が非同期モータとして構成され、該非同期モータが実際周波数を測定するセンサを有し、前記実際周波数が信号導線（１２）によって前記制御装置（１０）に目標周波数を修正するために与えられる、請求項１記載の装置。  The electric motor (7) of the feed roller (2) is configured as an asynchronous motor, the asynchronous motor has a sensor for measuring the actual frequency, and the actual frequency is transmitted to the control device (10) by a signal conductor (12). The apparatus of claim 1, provided to modify a target frequency. 前記伴走ローラ（３）の非同期モータ（８）が前記送りローラの非同期モータよりも著しく高いモータスリップを有している、請求項２記載の装置。  3. The device according to claim 2, wherein the asynchronous motor (8) of the follower roller (3) has a motor slip that is significantly higher than the asynchronous motor of the feed roller. 前記送りローラ（２）と前記伴走ローラ（３）とが直径比を規定可能である周面直径を有し、前記各非同期モータ（７，８）がそれぞれ、極対数比を規定可能である所定数の極対を有し、伴走ローラ（３）に対する送りローラ（２）の直径比が伴走ローラ（３）の非同期モータ（８）に対する送りローラ（２）の非同期モータ（７）の極対比に等しい、請求項２又は３記載の装置。  The feed roller (2) and the follower roller (3) have a peripheral surface diameter that can define a diameter ratio, and each of the asynchronous motors (7, 8) can respectively define a pole-to-log ratio. The diameter ratio of the feed roller (2) to the follower roller (3) is equal to the pole ratio of the asynchronous motor (7) of the feed roller (2) to the asynchronous motor (8) of the follower roller (3). Apparatus according to claim 2 or 3, which is equal. 前記送りローラ（２）及び／又は前記伴走ローラ（３）が少なくとも１つの直径段を周面に有している、請求項１から４までのいずれか１項記載の装置。  Device according to any one of claims 1 to 4, wherein the feed roller (2) and / or the follower roller (3) have at least one diameter step on the circumferential surface. 前記送りローラ（２）及び／又は前記伴走ローラ（３）が少なくとも１つの円錐状の周面領域を有している、請求項１から５までのいずれか１項記載の装置。  Device according to any one of the preceding claims, wherein the feed roller (2) and / or the follower roller (3) has at least one conical circumferential area. 前記送りローラ（２）及び／又は前記伴走ローラ（３）が周面を加熱する加熱手段を有している、請求項１から６までのいずれか１項記載の装置。  The device according to any one of claims 1 to 6, wherein the feed roller (2) and / or the accompanying roller (3) has a heating means for heating a peripheral surface. 前記伴走ローラの周速度が非同期モータの無負荷運転で前記送りローラの周速度よりも０．１〜１０％高くなるように前記伴走ローラが設計されている、請求項１から７までのいずれか１項記載の装置。  The follower roller is designed so that the peripheral speed of the follower roller is 0.1 to 10% higher than the peripheral speed of the feed roller in a non-load operation of an asynchronous motor. The apparatus of claim 1.
JP2004514710A 2002-06-19 2003-06-13 Device for guiding, processing or conveying at least one yarn Expired - Fee Related JP4263691B2 (en)

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PCT/EP2003/006231 WO2004001106A1 (en) 2002-06-19 2003-06-13 Device for guiding, treating, or conveying at least one thread

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US20050071968A1 (en) 2005-04-07
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CN100359052C (en) 2008-01-02
DE10227290A1 (en) 2004-01-08
EP1521870A1 (en) 2005-04-13
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US7226286B2 (en) 2007-06-05
DE50307248D1 (en) 2007-06-21

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